Answer
f(x)=-3(x+1)^2+5
Work Step by Step
f(x)=a(x-h)^2+k
y=a(x-h)^2+k
y=a(x+1)^2+5
-7=a(-3+1)^2+5
-12=a(-3+1)^2
-12=a(-2)(-2)
-12=a(4)
-12/4=a(4)/4
a=-3
Plug in a, h, k into the first equation
f(x)=-3(x+1)^2+5
Precalculus: Mathematics for Calculus, 7th Edition
by Stewart, James; Redlin, Lothar; Watson, Saleem
Published by
Brooks Cole
ISBN 10:
1305071751
ISBN 13:
978-1-30507-175-9
Chapter 3 - Section 3.1 - Quadratic Functions and Models - 3.1 Exercises - Page 252: 48
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